Top roll.



No. 678,538. Patented July I6, |90l.

L. W. CAMPBELL.

4 TOP ROLL.

(Application.111911 Nov. 17, 1898.) (-Ilo Model.)

@22W Wi Q @Q5-WWW mw l` www n 45 end of the spindle.

lIrTTTnn STATT-is nTnNT Omron.,

`LEON NV. CAMPBELL, OF VOONSOCKEI, RHODE ISLAND, ASSIGNOR OF ONE- IIALF TO MALCOLM CAMPBELL, OF BOSTON, MASSACHUSETTS.

'roe ROLL.

srncrnrcarron forming part of :Letters Patent No. 678,538, dated July 1e, 190i. Application tiled November 17, 1899. Serial No. 737,269. (No model.)

.To @ZZ wtom t may concern-.-

Be it known that I, LEON WsCAMrBnLL, of 'Woonsockea in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Top Rolls,

of which the following is a specification.

This invention has relation to top rolls for textile machinery, and more particularly to that class of rolls in which antifriction de- Io vices are employed in the bearings, as shown in my Patent No. 628,522, dated July 11, 1899.

The present invention comprises certain features of construction and arrangement of parts, as illustrated upon the accompanying drawings, described in the followingspeciiica-- tion, and pointed out in the appended claims.

Referring to the drawings, Figure 1 represents a top roll embodying my invention. Figs. 2 and 3 represent in detail the dust-cup zo which I employ.

The object of the invention is to prevent dust and lint from gaining access to the antifriction devices so as to clog them and prevent free rotation of the roll, and this I acl complish by the employment of guards and cups, as I shall now proceed to explain.

The roll 4; (shown upon the drawings) is of the type in which the bearings are at the end, being provided with sockets 5 for the spindles 3o 6, which rotate therewith. (See the patent to which I have hereinbefore referred.) Each spindle is formed with a shoulder 7 coincident with the end of the roll and is reduced at 8 to receive the beveled bearing-collar 9,

3 5 said collarhavin g a radial or peripheral flange 10. At its end the spindle is threaded to receive an internally-threaded collar 11, which is beveled at 12 oppositely to the collar 9. The hub 13 of the collar 11 is elongated and 4o is slotted at its end to receive a screw-driver or other implement by which it is screwed on the threaded end ofthe spindle. The collar is locked after adjustment by a screw 14E, passed into the hub and driven home against the Surrounding the spindle and the collars is a sleeve 15, which is adapted to receive the saddles and is formed with cups 16 17 at its ends for the series 18 19 of antifriction-balls. The cup 16 extends over the 5o flange 10 and fits rather snugly therearound, while the cup 17 is somewhat elongated and is internally threaded to receive the threaded end of a tube 20, which has a flange 2l to engage the end of the said cup. The tube fits comparatively snugly around the hub 1301'? 55 the collar 14 and is extended some distance beyond its end to prevent dust, lint, or other foreign matter passing between them.

A dust-cap 22 is employed at the inner end of the sleeve 15, being perforated at 23 to re- 6o ceive the spindle. It is placed between the collar 9 and the end of the roll, and it has a flange 24, which encircles the cup 16. Owing to the fact that the dust-cap is clamped between the collar 9 and the end of the rollfso 65 as to rotate with the roll, there can be no passage of foreign matter through the opening 23 of the cap, and the depth or width of the cup 16 and the overlapping or encircling fiange 24E is such that although one rotates 7o around the other such foreign matter cannot 4practically pass the entire length of the narrow space between the cup and flange From this description it will be seen that it is practically impossible for foreign matter--such as grit, lint, or dust-to enter the ball-chambers in the cup so as to retard the free movement of the balls, as it has to pass through exceedingly small spaces.

Having thus explained the nature of my in` 8o vention and described a way of constructing and using the same, though without attempting to set forth all of the forms in which it may be made or all of the modes of its use, what I claim, and desire to secure by Letters Patent, is-- 1. A top roll having a spindle, bearing-collars on said spindle, a sleeve having cups at its ends, antifriction devices placed between said collars and said cups, and a dust-cap se- 9o cured to rotate with the roll and closing the end of one of the cups and having a flange encircling said cup.

2. A top roll having a spindle projecting from the end thereof, bearing-collars on said spindle, a'sleeve having ball-cups, balls between the collars and cups, and a dust-cap clamped between one of the collars and the end of the roll and rotating with said roll, said cap having a flange encircling the ball- 10c cup adjacent the last-mentioned collar.

3. A top roll haying a spindle, a bearingn collar threaded on said spindle, the collar having an elongated hub, a sleeve havinga ballcup adjacent said collar, and a tube having a threaded engagement with said cup, and closely encircling the said hub to exclude dust.

4c. A top roll having a spindle, bearing-eollars on said spindle, asleeve having ball-cups, balls between said cups and said collars, a dust-cap secured to rotate with the roll and closing one of the cups and having a flange encircling said cup, and a tube closing the other ball-cup.

5. A top roll having a spindle, bearing-collars on said spindle a sleeve having ball-cups,

balls between said cups and said collars, a 15v may be adjusted by an implement inserted zo through said tube. y l

In testimony whereof I have affixed my sig-v nature in presence of two Witnesses.

LEON W. CAMPBELL.-

Witnesses:

M. B. MAY, E. BATCHELDER; 

